Could a cool Night's sleep protect workers from heat stress?

NCT ID NCT07656519

First seen Jun 27, 2026 ยท Last updated Jun 27, 2026

Summary

This study investigates whether sleeping in a cool room helps the body handle heat stress over two consecutive days of simulated physical work in hot conditions. Ten healthy older men will perform work tasks in a hot environment and then recover overnight in either a recommended cool room or a warmer room. Researchers will measure core temperature, heart strain, sleep quality, and other factors to see if inadequate cooling increases heat-related risks.

What this could mean

Our plain-language read of the trial. This is informational only โ€” not medical advice or a prediction.

What this could lead to
If successful, this study could inform guidelines to protect workers during heat waves by showing whether cool overnight recovery is essential.
What could go wrong
This is a small, early-stage study with only 10 healthy older men, so results may not apply to women, younger people, or those with health conditions.

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Conditions

The condition(s) this trial relates to.

Body Temperature Changes Heat Stress Disorders Hyperthermia Motor Activity occupation-related stress disorder Occupational Stress

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • University of Ottawa

    Ottawa, Ontario, K1N 6N5, Canada

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